SnAu

metal
· SnAu

SnAu is a tin-gold intermetallic compound representing a binary metallic system with potential applications in electronics and materials research. This alloy combines tin's solderability and relatively low melting point with gold's corrosion resistance and reliability, making it relevant to the precious-metals alloy family. SnAu systems are primarily explored in microelectronics bonding, thermal interface materials, and interconnect research, where the tin-gold phase diagram offers opportunities to tailor properties for specific joining or conductivity requirements; however, adoption remains limited compared to conventional solders or bulk gold alloys due to cost considerations and the specialized nature of its applications.

microelectronics bondingsolder and interconnectsthermal managementprecious-metal alloysmaterials research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)3 entries
ksi
ksi
ksi
Elastic Compliance Tensor(Sij)
Matrix (redacted)
1/GPa
Elastic Anisotropy(AU)
-
Elastic Stiffness Tensor(Cij)
Matrix (redacted)
ksi
Poisson's Ratio(ν)2 entries
-
-
Shear Modulus(G)3 entries
ksi
ksi
ksi
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
lb/in³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
eV
Magnetic Moment(μB)
µB
Seebeck Coefficient(S)
µV/K
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
eV/atom
Formation Energy(ΔHf)2 entries
eV/atom
eV/atom
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.
SnAu — Properties & Data | MatWorld